Kaneshima Edmilson Nobumito, Berger Sandrine Bittencourt, Fernandes Thais Maria Freire, Navarro Maria Fidela de Lima, Oltramari Paula Vanessa Pedron
Universidade do Norte do Paraná - Unopar, Department of Orthodontics, Londrina, PR, Brazil.
Universidade do Norte do Paraná - Unopar, Department of Operative Dentistry, Londrina, PR, Brazil.
Braz Oral Res. 2018 Sep 21;32:e47. doi: 10.1590/1807-3107bor-2018.vol32.0047.
The objective of this study was to assess the effect of a UV light-based auxiliary illumination on adhesive remnant (AR) removal after orthodontic debonding. Sixty human molars were divided according to the adhesive used for bonding: O-opaque; LF-low fluorescence; and HF-high fluorescence. After debonding, the teeth were subdivided according to the AR removal method: No UV light or With UV light. After AR removal, the teeth were polished. Direct visual analysis, scanning electron microscopy (SEM) and time quantification for AR removal analyses were performed (Fisher-Freeman-Halton, Fisher's exact, chi-square trend, ANOVA, and independent t-tests; α = 5%). Concerning the adhesives, there was no significant difference among direct visual, SEM and time analyses for AR removal (p ≥ 0.05). Regarding AR removal methods, a similarity among the subgroups was verified for direct visual and SEM analyses (p≥0.05). However, a significant trend was verified for the with UV light method to produce greater marks, and the no UV light method, to produce a greater rate of samples with AR before polishing (p = 0.015). AR removal with light was significantly quicker in comparison with the no UV light method (p < 0.0001). The use of UV light may aid orthodontists in removing AR more thoroughly and in less time. However, they should receive special training to apply this technology, and should never dismiss the final polishing procedure.
本研究的目的是评估基于紫外线的辅助照明对正畸去粘结后粘结剂残留（AR）去除效果的影响。60颗人类磨牙根据用于粘结的粘结剂进行分组：O-不透明；LF-低荧光；HF-高荧光。去粘结后，牙齿根据AR去除方法进行细分：无紫外线或有紫外线。AR去除后，对牙齿进行抛光。进行了直接视觉分析、扫描电子显微镜（SEM）和AR去除分析的时间量化（Fisher-Freeman-Halton检验、Fisher精确检验、卡方趋势检验、方差分析和独立t检验；α = 5%）。关于粘结剂，在AR去除的直接视觉、SEM和时间分析之间没有显著差异（p≥0.05）。关于AR去除方法，在直接视觉和SEM分析中，各亚组之间具有相似性（p≥0.05）。然而，验证了一个显著趋势，即有紫外线方法产生的痕迹更多，无紫外线方法在抛光前产生AR的样本率更高（p = 0.015）。与无紫外线方法相比，有光去除AR的速度明显更快（p < 0.0001）。使用紫外线可能有助于正畸医生更彻底、更快速地去除AR。然而，他们应该接受专门培训以应用这项技术，并且绝不能忽略最后的抛光程序。
